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Experiment with DHT11 and Arduino [Tutorial]
posted June 18 2014 4:24.23 by spic0m




Tolson Winters from BuildCircuit.com gives us a short tutorial about the use of the DHT11 humidity and temperature sensor with Arduino:

[QUOTE"The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

Compared to the DHT22, this sensor is less precise, less accurate and works in a smaller range of temperature/humidity, but its smaller and less expensive."



[Link: BuildCircuit.com]
 
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  • At 18 June 2014, 11:24:02 user Giorgos Lazaridis wrote:   [reply @ Giorgos Lazaridis]
    • @cheerio Not surprised... You get 10 pieces for 7 euro at ebay. hehehe


  • At 18 June 2014, 10:03:56 user cheerio wrote:   [reply @ cheerio]
    • i already used the dht11 and the accuracy over time is just bullshit....












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